Develop responsive web apps 5x faster!

A must-have DevTool for all Front-End developers that will make your job easier.

...and it is open-source too! 🎉

graphical divider

Web Engineering cannot get any easier!


Instant Preview

Preview all target screens in a single window side-by-side.
Brings down your development time!


Developer First

Use your already-familiar dev-tools from the browser.
No additional learning curve!


Open source

Lets improve it together!
Your contributions are welcome here.

graphical divider

It's really clear that the most precious resource we all have is Time.

- Steve Jobs

So let's use it wisely. 😎

graphical divider

Mirrored Interactions

Any click, scroll or navigation that you perform in one device will be replicated to all devices in real-time.

Customizable Layout

Customize the arrangement of the devices to suit your every need.

Awesome Elements Inspector

Inspect any element in any device with just one click. No Hassle!

Extensive Built-in Device Profiles

Has 30+ built-in device profiles covering all major devices. You can even add new custom device profiles as you like.

One-Click Screenshot

Get instant feedback on the pages that you develop with the powerful screenshots tool. Take full page screenshot of all devices or a specific device with just a single click!

Hot-Reloading Supported

Does your development server support Hot-Reloading? Then we do too! Hot-Reload all devices in real-time for every save.

graphical divider

Browser Extension

Install the handy browser extension to easily send links from your browser to the app and preview instantly.

Download for FirefoxDownload for Chrome Download for Edge

graphical divider
Sponsor us Sponsor us!